Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
cao tang » cao dang
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu
ha tang » phap tang, kho tang, ha giang

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu tinh - thanh cong ((ha tang) or (cao tang)) cong dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - thanh cong ((ha tang) OR (cao tang)) cong dan phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - thanh cong ((ha tang) or (cao tang)) cong dan phan cau*.